Determination is not great, and should not exist.
Players should be expected to play to the level of content they’re in, and let’s be clear, that level is extremely low for LFR. The content shouldn’t get nerfed every wipe.
LFR should be on the same nerf schedules as any other form of raiding.
LFR doesn’t exist to move people along to normal. You need to just let that notion go. Many players who enjoy LFR have no desire to ever step foot in any other type of raiding, nor does LFR in any way prepare a person for any other type of raiding.
It’s pretty much self-contained.